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The onset of low Prandtl number thermal convection in thin spherical shells

Published online by Cambridge University Press:  04 June 2018

Ferran Garcia ,
Frank R. N. Chambers  and
Anna L. Watts
Ferran Garcia
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, P.O. Box 94249, 1090 GE, Amsterdam, the Nederlands email: f.garciagonzalez@uva.nl, frnchambers@uva.nl, a.l.watts@uva.nl
Frank R. N. Chambers
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, P.O. Box 94249, 1090 GE, Amsterdam, the Nederlands email: f.garciagonzalez@uva.nl, frnchambers@uva.nl, a.l.watts@uva.nl
Anna L. Watts
Affiliation:
Anton Pannekoek Institute for Astronomy, University of Amsterdam, P.O. Box 94249, 1090 GE, Amsterdam, the Nederlands email: f.garciagonzalez@uva.nl, frnchambers@uva.nl, a.l.watts@uva.nl
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Abstract

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In this study the onset of stress-free Boussinesq thermal convection in rotating spherical shells with aspect ratio η = rinner/router = 0.9, Prandtl numbers Pr ∈ [10−4, 10−1], and Taylor numbers Ta ∈ [104, 1012] is considered. We focus on the form of the convective cell pattern that develops, and on its time scales, since this may have observational consequences for thermonuclear burning and the development of burst oscillations in the exploding oceans of accreting neutron stars (Watts (2012)).

Keywords

convectioninstabilities
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S337: Pulsar Astrophysics the Next Fifty Years , September 2017 , pp. 336 - 337
Copyright
Copyright © International Astronomical Union 2018 

References

Watts, A. L., 2012, ARAA, 50, 609CrossRefGoogle Scholar
Chandrasekhar, S. 1981, in: International Series of Monographs on Physics, Oxford: Clarendon.Google Scholar
Garcia, F., Sánchez, J., & Net, M., 2008, Phys. Rev. Lett., 101, 194501CrossRefGoogle Scholar
Garcia, F., Chambers, F. R. N., & Watts, A. L. 2017, Phys. Rev. Fluids, Submitted.Google Scholar